This depends on your main goals. I would personally probably build a cabinet at 140 litres and tune to 18hz, with a hpf set at 16hz. You would need a pair of ports, and slot ports at 200mm wide and 30mm high would need to be 730mm long.
Esto depende de tus objetivos principales. Yo personalmente, probablemente construir un gabinete de 140 litros y ajustar a 18Hz, con un HPF fijado en 16Hz. Usted necesitará un par de puertos y puertos en la ranura de alta de 200 mm de ancho y 30 mm tendría que ser 730 mm de largo.